Insertion assisting tool for endoscope

Abstract

An insertion assisting tool for an endoscope comprising: a tubular body having a passage through which an insertion part of an endoscope is inserted; a sidewall opening part which is provided in a sidewall part of the tubular body on a distal end side of the tubular body and through which a distal end part of the insertion part can be fed, the sidewall opening part having an edge part receiving and supporting the insertion part when the distal end part of the insertion part is fed from the sidewall opening part to be guided into a body cavity; a supply port formed at the edge part of the sidewall opening part; and a lubricating liquid supply passage which is in communication with the supply port to supply lubricating liquid to the supply port.

1 . An insertion assisting tool for an endoscope comprising:
 a tubular body having a passage through which an insertion part of an endoscope is inserted;   a sidewall opening part which is provided in a sidewall part of the tubular body on a distal end side of the tubular body and through which a distal end part of the insertion part can be fed, the sidewall opening part having an edge part receiving and supporting the insertion part when the distal end part of the insertion part is fed from the sidewall opening part to be guided into a body cavity;   a supply port formed at the edge part of the sidewall opening part; and   a lubricating liquid supply passage which is in communication with the supply port to supply lubricating liquid to the supply port.   
     
     
         2 . The insertion assisting tool for an endoscope according to  claim 1 , wherein the edge part of the sidewall opening part is positioned on a distal end side of the sidewall opening part. 
     
     
         3 . The insertion assisting tool for an endoscope according to  claim 1 , wherein the lubricating liquid supply passage is provided inside the sidewall part of the tubular body. 
     
     
         4 . The insertion assisting tool for an endoscope according to  claim 2 , wherein the lubricating liquid supply passage is provided inside the sidewall part of the tubular body. 
     
     
         5 . The insertion assisting tool for an endoscope according to  claim 1 , wherein the supply port is composed of a plurality of supply port elements arranged at the edge portion of the sidewall opening part. 
     
     
         6 . The insertion assisting tool for an endoscope according to  claim 2 , wherein the supply port is composed of a plurality of supply port elements arranged at the edge portion of the sidewall opening part. 
     
     
         7 . The insertion assisting tool for an endoscope according to  claim 3 , wherein the supply port is composed of a plurality of supply port elements arranged at the edge portion of the sidewall opening part. 
     
     
         8 . The insertion assisting tool for an endoscope according to  claim 4 , wherein the supply port is composed of a plurality of supply port elements arranged at the edge portion of the sidewall opening part. 
     
     
         9 . The insertion assisting tool for an endoscope according to  claim 1 , wherein a porous body is provided at the edge part of the sidewall opening part and the supply port is composed of fine holes formed on a surface of the porous body. 
     
     
         10 . The insertion assisting tool for an endoscope according to  claim 2 , wherein a porous body is provided at the edge part of the sidewall opening part and the supply port is composed of fine holes formed on a surface of the porous body. 
     
     
         11 . The insertion assisting tool for an endoscope according to  claim 3 , wherein a porous body is provided at the edge part of the sidewall opening part and the supply port is composed of fine holes formed on a surface of the porous body. 
     
     
         12 . The insertion assisting tool for an endoscope according to  claim 4 , wherein a porous body is provided at the edge part of the sidewall opening part and the supply port is composed of fine holes formed on a surface of the porous body. 
     
     
         13 . The insertion assisting tool for an endoscope according to  claim 5 , wherein a porous body is provided at the edge part of the sidewall opening part and the supply port is composed of fine holes formed on a surface of the porous body. 
     
     
         14 . The insertion assisting tool for an endoscope according to  claim 6 , wherein a porous body is provided at the edge part of the sidewall opening part and the supply port is composed of fine holes formed on a surface of the porous body. 
     
     
         15 . The insertion assisting tool for an endoscope according to  claim 7 , wherein a porous body is provided at the edge part of the sidewall opening part and the supply port is composed of fine holes formed on a surface of the porous body. 
     
     
         16 . The insertion assisting tool for an endoscope according to c aim  8 , wherein a porous body is provided at the edge part of the sidewall opening part and the supply port is composed of fine holes formed on a surface of the porous body. 
     
     
         17 . The insertion assisting tool for an endoscope according to  claim 1 , wherein a corner portion of the edge part of the sidewall opening part is chamfered. 
     
     
         18 . The insertion assisting tool for an endoscope according to  claim 2 , wherein a corner portion of the edge part of the sidewall opening part is chamfered. 
     
     
         19 . The insertion assisting tool for an endoscope according to  claim 3 , wherein a corner portion of the edge part of the sidewall opening part is chamfered. 
     
     
         20 . The insertion assisting tool for an endoscope according to  claim 4 , wherein a corner portion of the edge part of the sidewall opening part is chamfered.